xB.linkhuge (2M: 32):    libhugetlbfs [local:9919]: INFO: Found pagesize 2048 kB
libhugetlbfs [local:9919]: INFO: Detected page sizes:
libhugetlbfs [local:9919]: INFO:    Size: 2048 kB (default)  Mount: 
/dev/hugepages
libhugetlbfs [local:9919]: INFO: Parsed kernel version: [4] . [13] . [0]  
[pre-release: 2]
libhugetlbfs [local:9919]: INFO: Feature private_reservations is present in 
this kernel
libhugetlbfs [local:9919]: INFO: Feature noreserve_safe is present in this 
kernel
libhugetlbfs [local:9919]: INFO: Feature map_hugetlb is present in this kernel
libhugetlbfs [local:9919]: INFO: Kernel has MAP_PRIVATE reservations.  
Disabling heap prefaulting.
libhugetlbfs [local:9919]: INFO: Kernel supports MAP_HUGETLB
libhugetlbfs [local:9919]: INFO: HUGETLB_SHARE=0, sharing disabled
libhugetlbfs [local:9919]: INFO: HUGETLB_NO_RESERVE=no, reservations enabled
libhugetlbfs [local:9919]: INFO: Segment 0 (phdr 4): 0x9000000-0x9010048  
(filesz=0) (prot = 0x7)
libhugetlbfs [local:9919]: DEBUG: Total memsz = 0x10048, memsz of largest 
segment = 0x10048
libhugetlbfs [local:9919]: INFO: libhugetlbfs version: 2.20 (modified)
libhugetlbfs [local:9920]: WARNING: Couldn't map hugepage segment to copy data: 
Invalid argument
libhugetlbfs [local:9920]: WARNING: Failed to prepare segment
libhugetlbfs [local:9919]: WARNING: Failed to setup hugetlbfs file for segment 0
FAIL    small_bss is not hugepage
xB.linkhuge (2M: 64):    libhugetlbfs [local:9921]: INFO: Found pagesize 2048 kB
libhugetlbfs [local:9921]: INFO: Detected page sizes:
libhugetlbfs [local:9921]: INFO:    Size: 2048 kB (default)  Mount: 
/dev/hugepages
libhugetlbfs [local:9921]: INFO: Parsed kernel version: [4] . [13] . [0]  
[pre-release: 2]
libhugetlbfs [local:9921]: INFO: Feature private_reservations is present in 
this kernel
libhugetlbfs [local:9921]: INFO: Feature noreserve_safe is present in this 
kernel
libhugetlbfs [local:9921]: INFO: Feature map_hugetlb is present in this kernel
libhugetlbfs [local:9921]: INFO: Kernel has MAP_PRIVATE reservations.  
Disabling heap prefaulting.
libhugetlbfs [local:9921]: INFO: Kernel supports MAP_HUGETLB
libhugetlbfs [local:9921]: INFO: HUGETLB_SHARE=0, sharing disabled
libhugetlbfs [local:9921]: INFO: HUGETLB_NO_RESERVE=no, reservations enabled
libhugetlbfs [local:9921]: INFO: Segment 0 (phdr 4): 0x1000000-0x1010070  
(filesz=0) (prot = 0x7)
libhugetlbfs [local:9921]: DEBUG: symbol to copy at 0x1000000: stdout
libhugetlbfs [local:9921]: DEBUG: symbol to copy at 0x1000020: stderr
libhugetlbfs [local:9921]: DEBUG: Total memsz = 0x10070, memsz of largest 
segment = 0x10070
libhugetlbfs [local:9921]: INFO: libhugetlbfs version: 2.20 (modified)
libhugetlbfs [local:9922]: INFO: Mapped hugeseg at 0x7f3901a00000. Copying 0 
bytes and 0x28 extra bytes from 0x1000000...done
libhugetlbfs [local:9921]: INFO: Prepare succeeded
PASS

How can i enable xB.linkhuge (2M: 32)?
Thanks
Xiang
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